Type-writing machine.



'1'. L. K'NAPP. TYPE WRITING MAGHINE. APILIUATIOH FILED AUG. 2, 1910.

989,851. p Patented Apr.18,1911.

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it all whovh it may concern:

- THERON L KNAPP, QF WOODSTOQ K, I LINOIS, assrabs To QiilVERi ir zrnwntrhfa 3' COMPANY; OFJCHICAGO,, IlLLINO-IS,' A OQR O ATI- KQE:IlaiWP j t wra sitmamarina:

Specification of Letters Patent. Fata it es] Apt 1911.

Application filed August 2, 1910. I Serial No. 575,055.

Be ,it, known that I, THnRon L. lgNAPPy a 5 and State- Illinois have invented certain common pivot point or fulcrum 'for all the 60 new and usefulImprovements in Typekey-levers belonging to one" of "said'groups. -.Writing Machines; and I do hereby declare mob key-lever 1s provided with'an up- .fh 't th f u i i a f n clear d t wardly openmg transverse notch at its rear description thereof, reference being bad to end dapted for engagement with Sai Pi 10 the accompanying drawings, andto the let- I a A 65 ters of reference marked thereon, which form ndicates one of the key-lever lifting a p t, f'thi' p cifi ti spr ngs which has been heretofore used on This invention relates to improvements in, f s Qlwer typewriter; Said. lifting typewriting machines'and more particularly p g ed at a point forward of the 15 to certain novel features of construction in P rod and Serves to p' key-lever 111 70 vcitizen of the United States, and a resident oflvoodstock, in the county of McHenry connection with the hey-levers by means of which the several key-levers may be caused to act with uniform effect on the universal bar, which operates the letter-spacing mechends of the key-levers areinclosed.

B indicates-the keyleve'r's which extend in a direction from front to rear of the machine and are pivotally connected at their rear the machine and the key leversillustrated. in the accompanying drawings constitute'ap'ortion of the levers belonging to one ofsa-id groups. The pivot rod C constitutes the engagement with the pivot rod. Said'spring, as illustrated, consists of awire bent into Llform and having its lower end bent downwardly and inserted into a hole in the crossstamped or otherwise formed from a piece of comparatively soft metal so that the lowef leg of the U, which acts upon the universal bar, may be bent inja vertical direction as.

- vanism and the ribbon,feed bar E and its upper end bent to form a hook 75 i Th i p m t are Shown i h ac which engages a notch in the lower edge of companying drawings as applied to a the key-lever B. The cross-bar is sup chine of the kindshown in Letters Patent Ported by two downwardly P l PostS No. 834,565, granted to Cross and Grriilith epending from the horizontal top partof v October th,1906,but are applicable to mah base frame 'O of these POStS chines which differ in details of construc- Y V I tion from those Shawn in Said patent 1* 1s a universal bar extendmg transversely Theinvention consists of the matters hereunder the y' and adapted to be P inafter described and more particularly Grilled 11 y y of Stud Y- W 30 i t d t i th d d l i Sald universal, bar const tutes the rear mem- I th d i Fi 1 i l -1mmbcrof a vertically swmgmg frame F which nal vertical section through the base frame 13 p f y connected at Its f aFd end to of the machine taken between two key levers g secured to the base an Whlch p Fig. 2 is a partial transverse section through ates EP mechamsl'n and the b II 35 Fi 1 on th li Q 2 th f Fi 3 i mechanism lnthe usual manner. detail partial sectional view similar to Fig. G lndlcates gs Winch are a tached to the 1 shotvn on an enlarggd 3 31a. is a key-levers and :l'llch are adapted t0 act i il d t il ti l i h i a downwardly agalnst the universal bar F slightly modified form of the improved feaw fl QY are ep e se S 0 true of construction c dlcated in Figs. 1 t0 3, each Of said lugs i A shgwni th d i A i di t comprises a U-shaped member 9 which is 013'- the base frame of the machine, having a hori Set from and preferably made integral with zontal top portion and deperiding flanges at gh member 9. The member g is the sides and back margins thereof, forming riveted or otherwise conveniently secured to 45 a hollow structure within whiohtherear one face of the key-lever. Said lugs are 50 ends with the base frame-A by means of a a horizontal rod C extending transversely of said key-levers. Said keydevers, in the Oliver typewriter, are. arranged in two laterally separated groups located one on. 55 each side of the longitudinal center line of indicated in dotted lines, and serve as an adjustable extension of the key-levers by means of which the several key-levers may be caused to act with uniform effect upon the universal bar. This construction provides not only a simple and efiicient means for unit? 6 the *fact that the adjustable lugs are carried by the key-levers, no special mechanism is "required for guiding the vertical movement of the key-levers as in a construction where an adjustable stop for each key-lever is carried by the universal bar, when, on account of the narrow contact surfaces of the engaging parts, due to lack of space, some means must be used for accurately guiding said key-levers inorder to insuretheir striking the adjustable stops.

lVhile the construction of what may be termed the bendable lugs Gis preferabl that shown in Figsml to 8, wherein the hen able member of the lug is comparatively long,- by reason of which it is the more readit is apparent that this may be without departing from the spirit of the invention. For example, in Fig. 4: is shown a lug H of substantially U-shape, the upper leg of which, h, comprises the attachily bent,

ing member which isdirectly secured to the while the lowerleg k comprises the adjustablelor bendable member of the key-l ever,

lug, which contacts'with the universal bar.

of lu'gs secured to each of said key-leversg said lugs each having a part adapted to act against said universal bar, said part being bendable in a vertical direction whereby the several key-levers may be caused to act with uniform effect upon the universal bar.

2. In a typewriting machine, in combination with the key-levers and a universal bar adapted to be acted upon by each of said levers, lugs rigidly'securecl to each of said key-levers; said lu s each including a U- shaped member havlng a leg adapted to engage the universal bar, said leg being bend-v able in a vertical direction.

In testimony, that presence of witnesses, this 29th day A. D. 191.0.

THERON KNAPP.

Witnesses E. B. HoY, BERNARD E. Glenn, W. G. HOY.

I, claim the foregoing 1 as my invention I afli'x my signature in the otJuly 

